Free math_tools calculators to help your business grow.
Calculate percentages in 4 modes: find what percent X is of Y, find X% of Y, calculate percent increase, or percent decrease between two values.
Calculate tip amount, total bill, and split the cost per person. Enter your bill amount, tip percentage, and number of people to split with.
Calculate the discount amount, final price after discount, and total savings. Enter the original price and discount percentage to see how much you save.
Simplify ratios or solve cross-multiplication problems. Mode 1 expresses A:B as a decimal ratio. Mode 2 solves A/B = C/D for the unknown D.
Calculate the mean, sum, minimum, and maximum of up to 10 numbers. Enter your values and specify how many to include in the calculation.
Calculate sales tax in two modes: add tax to a pre-tax amount, or extract tax from a post-tax (tax-inclusive) amount. Useful for VAT and GST calculations.